What is Cryptography?
Able Encryption Software. Safe Soft Corporation. Frequently ...Cryptography is the art and science of keeping files and messages secure. It works by mathematically transforming plaintext messages or files into a ciphertext, a process known as encryption.
Related QuestionsDigital Certificate Registration CenterCryptography is the science of enabling secure communications between a sender and one or more recipients. This is achieved by the sender scrambling a message (with a computer program and a secret key) and leaving the recipient to unscramble the message (with the same computer program and a key, which may or may not be the same as the sender's key). The emphasis of cryptography is on data confidentiality, data integrity, sender authentication, and non-repudiation of origin/data accountability.Related Questions
The National Committee for Voting Integrity (NCVI)Cryptography is the science of mathematical security. On modern computers, cryptography includes encryption, authentication, and integrity. A good introduction to the concepts can be found here:Related Questions
DCSSI FAQCryptography is a science intended to convert unencrypted information or signals into information or signals using secret conventions called keys, such that the information or signals are unintelligible to third parties who are not aware of the secret used to convert the signals, or to perform the reverse operation using hardware or software means designed for this purpose.Related Questions
Digital IdentityCryptography is the science of disguising information through encryption (scrambling) and restoring it to its original form through decryption. It provides similar, but much stronger, security assurances that signatures, paper envelopes and codebooks have always provided.Related Questions
Where can I learn more about cryptography?
DESCHALL Project Frequently Asked QuestionsThere are a few good resources available that should be able to help you better understand cryptography, regardless of your level of experience. Some of these can get quite technical, so if you're looking for a quicker introduction to some of the concepts and such, you'll probably want to grab the Snake Oil FAQ which was written to be understandable by an IS-type person without lots of background in mathematics or information security.
Related QuestionsWhat is encryption and cryptography?
JARING E-MALLEncryption is the transformation of data into a form (a cipher) that is, for most intents and purposes, impossible to read with out the appropriate decoder (a cryptographic key). Its purpose is to ensure privacy by keeping information hidden from anyone for whom it is not intended, even those who have access to the encrypted data. Decryption is the reverse of encryption; it is the transformation of encrypted data back into an intelligible form.
Related QuestionsChina Construction Bank (Macau)Encryption/Cryptography creates a secure environment for the information being transferred between your browser and China Construction Bank (Macau). Put simply, secure data such as your customer ID and Password are scrambled in our encryption/cryptography process to avoid disclosing your information by unauthorized persons.Related Questions
What is symmetric cryptography?
The National Committee for Voting Integrity (NCVI)Encryption uses a mathematical key to provide secrecy. Symmetric cryptography refers to encryption systems that use the same key to encrypt and decrypt. A longer explanation can be found here: There are many books that explain these concepts in more detail. We recommend Chapter XX of Secrets & Lies: Digital Security in a Networked World, by Bruce Schneier.
Related QuestionsWhat is cryptology? Cryptography? Plaintext? Ciphertext? Encryption? Key?
Cryptography FAQs - WikiFAQ - Answers to Frequently Asked Qu...The story begins: When Julius Caesar sent messages to his trusted acquaintances, he didn't trust the messengers. So he replaced every A by a D, every B by a E, and so on through the alphabet. Only someone who knew the ''shift by 3 rule could decipher his messages. A cryptosystem or cipher system is a method of disguising messages so that only certain people can see through the disguise. Cryptography is the art of creating and using cryptosystems.
Related Questionsc) What is secret key cryptography?
Digital Signature IndiaSecret-key cryptography is sometimes referred to as symmetric cryptography. It is the more traditional form of cryptography, in which a single key can be used to encrypt and decrypt a message. Secret-key cryptography not only deals with encryption, but it also deals with authentication.
Related Questionsd) What is Public Key Cryptography?
Digital Signature IndiaPublic Key Cryptography is a method for securely exchanging messages, based on assigning two complimentary keys (one public, one private) to the individuals involved in a transaction. Public Key Cryptography is based on the science of encryption, the mathematical scrambling and unscrambling of messages.
Related QuestionsWhat is Server Gated Cryptography (SGC)?
SSL Certificate FAQs - SSL and HTTPS BasicsU.S. government restrictions on U.S. vendors prevented the export of "strong" cryptography several years ago. As a result, many people purchased computers or downloaded export version browsers supporting only 40- or 56-bit SSL encryption. Microsoft developed "Server Gated Cryptography" ("SGC") and Netscape developed "step-up" technology to enable 128-bit SSL encryption with export versions of browsers.
Related QuestionsHow can I learn more about Cryptography on the Internet?
RXN Communications FAQ - InternetCryptography has many applications on the internet today, from the protection of documents to the securing of online transactions. The following sites offer additional information: Handbook of Applied Cryptography
Related QuestionsWhat is secret/symmetric cryptography?
Digital Certificate Registration CenterSecret key (symmetric/conventional) cryptography is a system based on the sender and receiver of a message knowing and using the same secret key to encrypt and decrypt their messages. One weakness of this system is that the sender and receiver must trust some communications channel to transmit the secret key to prevent from disclosure. Example: You use a strongbox to send a valuable gift to your friend, locking it with a key. No one can get to the gift without the key, including your friend.
Related QuestionsWhat is public/asymmetric key cryptography?
Digital Certificate Registration CenterPublic key (asymmetric) cryptography is a system based on pairs of keys called public key and private key. The public key is published while the private key is kept secret with the owner. The need for a sender and a receiver to share a secret key and trust some communications channel is eliminated. This concept was introduced in 1976 by Whitfield Diffie and Martin Hellman.
Related QuestionsHow can you ensure that cryptography is being applied correctly?
The National Committee for Voting Integrity (NCVI)One of the most difficult problems with cryptography is that only a very small number of people really understand today's best cryptosystems. There are more people who understand how to correctly use these systems but who do not necessarily understand their underlying mathematics, but even this group is relatively small. Most people, therefore, are forced to trust the words of the experts. See:
Related QuestionsWhere does the word cryptography come from?
The National Committee for Voting Integrity (NCVI)The word "cryptography" is taken from the Greek word "kryptos" meaning hidden and graphein meaning writing. Cryptography is the science of hidden writing or more accurately the study of encrypting or encyphering messages so that their content is obscured until they are decrypted or decyphered. Typically, the encryption process uses a key or password, the encryption key, and the message can only be decrypted if the correct decryption key is given.
Related QuestionsHow secure is the conventional cryptography option?
Security QuestionsAssuming that you are using a good strong random pass phrase, it is actually much stronger than the normal mode of encryption because you have removed RSA which is believed to be the weakest link in the chain. Of course, in this mode, you will need to exchange secret keys ahead of time with each of the recipients using some other secure method of communication, such as an inperson meeting or trusted courier.
Related Questionsedit] What cryptography standards are supported?
NSS FAQ - MDCNSS supports SSL v2 and v3, TLS, PKCS #5, PKCS #7, PKCS #11, PKCS #12, S/MIME, and X.509 v3 certificates. For complete details, see Encryption Technologies Available in NSS 3.11
Related QuestionsWhat is the difference between watermarking, steganography, and cryptography ?
Digital Watermarking World: FAQWhile cryptography is about protecting the content of messages (their meaning), steganography is about concealing their very existence. It comes from Greek roots, literally means 'covered writing', and is usually interpreted to mean hiding information in other information. Examples include sending a message to a spy by marking certain letters in a newspaper using invisible ink, and adding sub-perceptible echo at certain places in an audio recording.
Related QuestionsAre there any special rules for Cryptography Teasers?
Braingle: FAQFor cryptograms, you should include the author's name of the quote if known. Random sentences are not acceptable as cryptograms. All cryptograms should be more than one sentence long. Cryptolist teasers should have four or more items in the list; all items in the list should be related in some way and should include a category. Cryptomath teasers should not be simply encoded mathematical expressions, rather they should be words or phrases that will reveal an equation when decoded.
Related Questions